Posted in javascript
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12:56 pm, December 7, 2020
 

Modern HTML5 Techniques for changing classes

Javascript

document.getElementById("MyElement").classList.add('MyClass');

document.getElementById("MyElement").classList.remove('MyClass');

if ( document.getElementById("MyElement").classList.contains('MyClass') )

document.getElementById("MyElement").classList.toggle('MyClass');

External Link for Modern HTML5 Techniques for changing classes

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Random CSS Property

:past

The :past CSS pseudo-class selector is a time-dimensional pseudo-class that will match for any element which appears entirely before an element that matches :current. For example in a video with captions which are being displayed by WebVTT.
:past css reference